/**
 * Copyright (c) Tiny Technologies, Inc. All rights reserved.
 * Licensed under the LGPL or a commercial license.
 * For LGPL see License.txt in the project root for license information.
 * For commercial licenses see https://www.tiny.cloud/
 *
 * Version: 5.10.0 (2021-10-11)
 */
(function() {
  'use strict'

  var global = tinymce.util.Tools.resolve('tinymce.PluginManager')

  var typeOf = function(x) {
    var t = typeof x
    if (x === null) {
      return 'null'
    } else if (t === 'object' && (Array.prototype.isPrototypeOf(x) || x.constructor && x.constructor.name === 'Array')) {
      return 'array'
    } else if (t === 'object' && (String.prototype.isPrototypeOf(x) || x.constructor && x.constructor.name === 'String')) {
      return 'string'
    } else {
      return t
    }
  }
  var isType$1 = function(type) {
    return function(value) {
      return typeOf(value) === type
    }
  }
  var isSimpleType = function(type) {
    return function(value) {
      return typeof value === type
    }
  }
  var isString = isType$1('string')
  var isBoolean = isSimpleType('boolean')
  var isNullable = function(a) {
    return a === null || a === undefined
  }
  var isNonNullable = function(a) {
    return !isNullable(a)
  }
  var isFunction = isSimpleType('function')
  var isNumber = isSimpleType('number')

  var noop = function() {
  }
  var compose1 = function(fbc, fab) {
    return function(a) {
      return fbc(fab(a))
    }
  }
  var constant = function(value) {
    return function() {
      return value
    }
  }
  var identity = function(x) {
    return x
  }
  var never = constant(false)
  var always = constant(true)

  var none = function() {
    return NONE
  }
  var NONE = (function() {
    var call = function(thunk) {
      return thunk()
    }
    var id = identity
    var me = {
      fold: function(n, _s) {
        return n()
      },
      isSome: never,
      isNone: always,
      getOr: id,
      getOrThunk: call,
      getOrDie: function(msg) {
        throw new Error(msg || 'error: getOrDie called on none.')
      },
      getOrNull: constant(null),
      getOrUndefined: constant(undefined),
      or: id,
      orThunk: call,
      map: none,
      each: noop,
      bind: none,
      exists: never,
      forall: always,
      filter: function() {
        return none()
      },
      toArray: function() {
        return []
      },
      toString: constant('none()')
    }
    return me
  }())
  var some = function(a) {
    var constant_a = constant(a)
    var self = function() {
      return me
    }
    var bind = function(f) {
      return f(a)
    }
    var me = {
      fold: function(n, s) {
        return s(a)
      },
      isSome: always,
      isNone: never,
      getOr: constant_a,
      getOrThunk: constant_a,
      getOrDie: constant_a,
      getOrNull: constant_a,
      getOrUndefined: constant_a,
      or: self,
      orThunk: self,
      map: function(f) {
        return some(f(a))
      },
      each: function(f) {
        f(a)
      },
      bind: bind,
      exists: bind,
      forall: bind,
      filter: function(f) {
        return f(a) ? me : NONE
      },
      toArray: function() {
        return [a]
      },
      toString: function() {
        return 'some(' + a + ')'
      }
    }
    return me
  }
  var from = function(value) {
    return value === null || value === undefined ? NONE : some(value)
  }
  var Optional = {
    some: some,
    none: none,
    from: from
  }

  var map = function(xs, f) {
    var len = xs.length
    var r = new Array(len)
    for (var i = 0;i < len;i++) {
      var x = xs[i]
      r[i] = f(x, i)
    }
    return r
  }
  var each = function(xs, f) {
    for (var i = 0, len = xs.length;i < len;i++) {
      var x = xs[i]
      f(x, i)
    }
  }
  var filter = function(xs, pred) {
    var r = []
    for (var i = 0, len = xs.length;i < len;i++) {
      var x = xs[i]
      if (pred(x, i)) {
        r.push(x)
      }
    }
    return r
  }

  var DOCUMENT = 9
  var DOCUMENT_FRAGMENT = 11
  var ELEMENT = 1
  var TEXT = 3

  var fromHtml = function(html, scope) {
    var doc = scope || document
    var div = doc.createElement('div')
    div.innerHTML = html
    if (!div.hasChildNodes() || div.childNodes.length > 1) {
      console.error('HTML does not have a single root node', html)
      throw new Error('HTML must have a single root node')
    }
    return fromDom(div.childNodes[0])
  }
  var fromTag = function(tag, scope) {
    var doc = scope || document
    var node = doc.createElement(tag)
    return fromDom(node)
  }
  var fromText = function(text, scope) {
    var doc = scope || document
    var node = doc.createTextNode(text)
    return fromDom(node)
  }
  var fromDom = function(node) {
    if (node === null || node === undefined) {
      throw new Error('Node cannot be null or undefined')
    }
    return { dom: node }
  }
  var fromPoint = function(docElm, x, y) {
    return Optional.from(docElm.dom.elementFromPoint(x, y)).map(fromDom)
  }
  var SugarElement = {
    fromHtml: fromHtml,
    fromTag: fromTag,
    fromText: fromText,
    fromDom: fromDom,
    fromPoint: fromPoint
  }

  var is = function(element, selector) {
    var dom = element.dom
    if (dom.nodeType !== ELEMENT) {
      return false
    } else {
      var elem = dom
      if (elem.matches !== undefined) {
        return elem.matches(selector)
      } else if (elem.msMatchesSelector !== undefined) {
        return elem.msMatchesSelector(selector)
      } else if (elem.webkitMatchesSelector !== undefined) {
        return elem.webkitMatchesSelector(selector)
      } else if (elem.mozMatchesSelector !== undefined) {
        return elem.mozMatchesSelector(selector)
      } else {
        throw new Error('Browser lacks native selectors')
      }
    }
  }

  typeof window !== 'undefined' ? window : Function('return this;')()

  var name = function(element) {
    var r = element.dom.nodeName
    return r.toLowerCase()
  }
  var type = function(element) {
    return element.dom.nodeType
  }
  var isType = function(t) {
    return function(element) {
      return type(element) === t
    }
  }
  var isElement = isType(ELEMENT)
  var isText = isType(TEXT)
  var isDocument = isType(DOCUMENT)
  var isDocumentFragment = isType(DOCUMENT_FRAGMENT)
  var isTag = function(tag) {
    return function(e) {
      return isElement(e) && name(e) === tag
    }
  }

  var owner = function(element) {
    return SugarElement.fromDom(element.dom.ownerDocument)
  }
  var documentOrOwner = function(dos) {
    return isDocument(dos) ? dos : owner(dos)
  }
  var parent = function(element) {
    return Optional.from(element.dom.parentNode).map(SugarElement.fromDom)
  }
  var children$2 = function(element) {
    return map(element.dom.childNodes, SugarElement.fromDom)
  }

  var rawSet = function(dom, key, value) {
    if (isString(value) || isBoolean(value) || isNumber(value)) {
      dom.setAttribute(key, value + '')
    } else {
      console.error('Invalid call to Attribute.set. Key ', key, ':: Value ', value, ':: Element ', dom)
      throw new Error('Attribute value was not simple')
    }
  }
  var set = function(element, key, value) {
    rawSet(element.dom, key, value)
  }
  var remove = function(element, key) {
    element.dom.removeAttribute(key)
  }

  var isShadowRoot = function(dos) {
    return isDocumentFragment(dos) && isNonNullable(dos.dom.host)
  }
  var supported = isFunction(Element.prototype.attachShadow) && isFunction(Node.prototype.getRootNode)
  var getRootNode = supported ? function(e) {
    return SugarElement.fromDom(e.dom.getRootNode())
  } : documentOrOwner
  var getShadowRoot = function(e) {
    var r = getRootNode(e)
    return isShadowRoot(r) ? Optional.some(r) : Optional.none()
  }
  var getShadowHost = function(e) {
    return SugarElement.fromDom(e.dom.host)
  }

  var inBody = function(element) {
    var dom = isText(element) ? element.dom.parentNode : element.dom
    if (dom === undefined || dom === null || dom.ownerDocument === null) {
      return false
    }
    var doc = dom.ownerDocument
    return getShadowRoot(SugarElement.fromDom(dom)).fold(function() {
      return doc.body.contains(dom)
    }, compose1(inBody, getShadowHost))
  }

  var ancestor$1 = function(scope, predicate, isRoot) {
    var element = scope.dom
    var stop = isFunction(isRoot) ? isRoot : never
    while (element.parentNode) {
      element = element.parentNode
      var el = SugarElement.fromDom(element)
      if (predicate(el)) {
        return Optional.some(el)
      } else if (stop(el)) {
        break
      }
    }
    return Optional.none()
  }

  var ancestor = function(scope, selector, isRoot) {
    return ancestor$1(scope, function(e) {
      return is(e, selector)
    }, isRoot)
  }

  var isSupported = function(dom) {
    return dom.style !== undefined && isFunction(dom.style.getPropertyValue)
  }

  var get = function(element, property) {
    var dom = element.dom
    var styles = window.getComputedStyle(dom)
    var r = styles.getPropertyValue(property)
    return r === '' && !inBody(element) ? getUnsafeProperty(dom, property) : r
  }
  var getUnsafeProperty = function(dom, property) {
    return isSupported(dom) ? dom.style.getPropertyValue(property) : ''
  }

  var getDirection = function(element) {
    return get(element, 'direction') === 'rtl' ? 'rtl' : 'ltr'
  }

  var children$1 = function(scope, predicate) {
    return filter(children$2(scope), predicate)
  }

  var children = function(scope, selector) {
    return children$1(scope, function(e) {
      return is(e, selector)
    })
  }

  var getParentElement = function(element) {
    return parent(element).filter(isElement)
  }
  var getNormalizedBlock = function(element, isListItem) {
    var normalizedElement = isListItem ? ancestor(element, 'ol,ul') : Optional.some(element)
    return normalizedElement.getOr(element)
  }
  var isListItem = isTag('li')
  var setDir = function(editor, dir) {
    var selectedBlocks = editor.selection.getSelectedBlocks()
    if (selectedBlocks.length > 0) {
      each(selectedBlocks, function(block) {
        var blockElement = SugarElement.fromDom(block)
        var isBlockElementListItem = isListItem(blockElement)
        var normalizedBlock = getNormalizedBlock(blockElement, isBlockElementListItem)
        var normalizedBlockParent = getParentElement(normalizedBlock)
        normalizedBlockParent.each(function(parent) {
          var parentDirection = getDirection(parent)
          if (parentDirection !== dir) {
            set(normalizedBlock, 'dir', dir)
          } else if (getDirection(normalizedBlock) !== dir) {
            remove(normalizedBlock, 'dir')
          }
          if (isBlockElementListItem) {
            var listItems = children(normalizedBlock, 'li[dir]')
            each(listItems, function(listItem) {
              return remove(listItem, 'dir')
            })
          }
        })
      })
      editor.nodeChanged()
    }
  }

  var register$1 = function(editor) {
    editor.addCommand('mceDirectionLTR', function() {
      setDir(editor, 'ltr')
    })
    editor.addCommand('mceDirectionRTL', function() {
      setDir(editor, 'rtl')
    })
  }

  var getNodeChangeHandler = function(editor, dir) {
    return function(api) {
      var nodeChangeHandler = function(e) {
        var element = SugarElement.fromDom(e.element)
        api.setActive(getDirection(element) === dir)
      }
      editor.on('NodeChange', nodeChangeHandler)
      return function() {
        return editor.off('NodeChange', nodeChangeHandler)
      }
    }
  }
  var register = function(editor) {
    editor.ui.registry.addToggleButton('ltr', {
      tooltip: 'Left to right',
      icon: 'ltr',
      onAction: function() {
        return editor.execCommand('mceDirectionLTR')
      },
      onSetup: getNodeChangeHandler(editor, 'ltr')
    })
    editor.ui.registry.addToggleButton('rtl', {
      tooltip: 'Right to left',
      icon: 'rtl',
      onAction: function() {
        return editor.execCommand('mceDirectionRTL')
      },
      onSetup: getNodeChangeHandler(editor, 'rtl')
    })
  }

  function Plugin() {
    global.add('directionality', function(editor) {
      register$1(editor)
      register(editor)
    })
  }

  Plugin()
}())
